Never stop coding. Free MIT AI gateway: one endpoint, 375 providers (150+ free), 1,400+ models Kimi, Claude, GPT, Gemini, GLM, DeepSeek, MiniMax. Works with Claude Code, Codex, Cursor, OpenCode, Cline & Copilot. Quota-aware auto-fallback, RTK+Caveman compression saves 15-95% tokens, MCP/A2A, Desktop/PWA. Built by 900+ contributors
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7.4 billion tokens per month. 34 free LLM providers. 635 free model endpoints. All behind one /v1 endpoint, plus any custom OpenAI-compatible endpoint. Smart routing, automatic failover, encrypted keys. Personal experimentation only.
An AI prompt optimizer for writing better prompts and getting better AI results.
- llm
- prompt
- prompt-engineering
- prompt-optimization
🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.
Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.
FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and visual AI workflow orchestration, letting you easily develop and deploy complex question-answering systems without the need for extensive setup or configuration.
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.
Enhancement suite for Gemini, AI Studio, Claude, ChatGPT & DeepSeek — plus a prompt manager for any website, DeepSeek Harness included. / 面向 Gemini、AI Studio、Claude、ChatGPT 与 DeepSeek 的增强套件；其中的提示词管理器可用于任意网站，如 DeepSeek Harness。
- chat-management
- chrome-extension
- gemini
- ai-studio
The open-source hub to build & deploy GPT/LLM Agents ⚡️
Desktop Companion for Hermes Agent
🍌 World's largest Nano Banana Pro prompt library — 10,000+ curated prompts with preview images, 16 languages. Google Gemini AI image generation. Free & open source.
- gemini-ai
- nano-banana-pro
- prompt-engineering
- awesome
Typescript/React Library for AI Chat 💬🚀
- conversational-ai
- radix-ui
- shadcn
- ui-components
The best way to get AI coding agents to solve hard problems in complex codebases.
Refine high-quality datasets and visual AI models
🌌 A complete search engine and RAG pipeline in your browser, server or edge network with support for full-text, vector, and hybrid search in less than 2kb.
- data-structures
- full-text
- search
- typo-tolerance
Sketch Material 3 Expressive screens in the browser and turn them into vibe-coding prompts.
- design-tool
- material-3-expressive
- material-design
- material3
Open-source AI brand visibility and competitor reports. Official website: https://niubigeo.ai/ | Paid services: AI testing by real people and GEO optimization. Pricing: https://niubigeo.ai/pricing
WebChatGPT: A browser extension that augments your ChatGPT prompts with web results.
- ai
- browser-extension
- chatgpt
- chrome-extension
Open-Source Agent Observability & Evals for AI Platform teams. Trace, test, route and govern every agent & coding assistant in the company.
Fully customizable AI chatbot component for your website
An open coding agent for your terminal, built by a community collective rather than a company. Bring your own model, keep your code on your machine, and owe nothing to anyone.
The React library for LLMs
Curate a custom library of AI Prompts
- ai
- browser-extension
- chatgpt
- chrome-extension
A TypeScript-first, runtime-agnostic command-line toolkit for Deno, Node.js and Bun: featuring a command framework, argument parser, interactive prompts, tables, ANSI utilities, and more.
- deno
- cli
- typescript
- command-line